Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ad8ab3a4068c2da…

MALICIOUS

PDF

48.9 KB Created: 2021-06-10 11:29:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 971322b3ffb21d89b321334a99cb8e8e SHA-1: 64692a772426b91288684e6930d18697f65b42ff SHA-256: 2ad8ab3a4068c2da6cac9deff8441cc99d1f1a076e9c53e382f75242848bc041
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous embedded URLs that link to external resources, many of which are presented as hacks or cheats for popular games. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a coordinated effort to direct users to potentially malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.tw/app/431946152/roblox-free-draw-2-game-hack
    • http://library.itekes-bali.ac.id/repository/noclip-for-camera-hack-roblox_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/free-coins-and-spins-for-coin-master_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/how-to-hack-in-roblox-prison-life_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/roblox-robux-hack_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/escape-the-free-robux-scams-freecookie20214_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/game-coin-master-hack_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spons-apk-2021_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/how-do-you-get-roblox-money_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/coin-master-gold-cards-hack-2021_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/free-coin-master-cards_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/coin-master-daily-spin-link_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/how-to-hack-someone-on-roblox_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/coin-master-free-coins-link-blogspot_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/flame-gg-free-robux_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/free-robux-hack-2021_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/free-robux-by-watching-ads_GM431946152.pdf
    • http://library.itekes-bali.ac.id/repository/get-free-cards-in-coin-master_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/free-coin-master-spins-for-today_GM406889139.pdf
    • http://library.itekes-bali.ac.id/repository/free-robux-that-actually-works_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000054d8.bin
92dadc2320c68d022ae870783e117ae28296e4b3227c90eb5d13f74edfb62a23		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54D8 25744 bytes
font_01_sfnt_off00009189.bin
baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9189 2844 bytes
font_02_sfnt_off00009b4a.bin
6c198a480cae6db830a99288750e336760fe98356c71f46337d4efaea2a853c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B4A 18632 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.